Dark energy is the placeholder name scientists have given to the unknown force causing the universe to expand faster and ...

Heat is a form of energy. The heat energy from the water makes the water molecules in the hot water move faster than the water molecules in the cold water. The faster moving molecules in the hot water ...

Renewable energy sources are plentiful and all around us. Fossil fuels - coal, oil and gas - on the other hand, are non-renewable resources that take hundreds of millions of years to form.

Scientists blasted the 4,600-year-old structure with electromagnetic waves, a form of radiation that travel though the universe, finding it focused and amplified the energy into specific ...

New data further challenge the best scientific theory of the history and the structure of the universe. But a separate recent ...

What powers life? In most ecosystems, sunlight is absorbed and converted into usable forms of energy via photosynthesis. These usable forms of energy are carbon-based. A primary example of this ...